#include"help.h"
void show(vector<int>& now){
    for(int i=0;i<now.size();++i)
        cout<<now[i]<<' ';
    cout<<endl;
}
void test(){
    vector<int> arr;
    for(int i=0;i<10;++i){
        arr.push_back(i);
        show(arr);
    }
    return;
}